Editors like Richard Lehmann of ISA ETF Investor, who has picked iShares Japan Index, believe Japan is entering a secular bull market that could last for years.

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If you look at a chart of any major index for those 18 years, you have a giant bull market.

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Vanguard and other index-focused firms were expanding rapidly in the 1990s bull market by spreading their message of low fees and better performance.

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Investors seeking to make the trading bet that the bull market for stocks continues can do so investing in the iShares Dow Jones Transportation Average Index Fund ( IYT) .

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